<!--
 * @Author: your name
 * @Date: 2021-07-02 11:31:02
 * @LastEditTime: 2021-07-08 11:19:08
 * @LastEditors: Please set LastEditors
 * @Description: In User Settings Edit
 * @FilePath: \dianshang\vue_shop\src\components\Power\Roles.vue
-->
<template>
  <div>
    <!-- 导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
      <el-row :gutter="10">
        <el-col :span="6">
          <el-button type="primary" @click="rolesVisible = true"
            >添加角色</el-button
          >
        </el-col>
      </el-row>
      <el-table :data="rolesList" border stripe>
        <!-- 展开列 -->
        <el-table-column type="expand">
          <template slot-scope="scope">
            <el-row
              :class="['bdbottom', i1 === 0 ? 'bdtop' : '', 'vcenter']"
              v-for="(item1, i1) in scope.row.children"
              :key="item1.id"
            >
              <!-- 一级权限 -->
              <el-col :span="5">
                <el-tag
                  closable
                  @close="removeRightById(scope.row, item1.id)"
                  >{{ item1.authName }}</el-tag
                >
                <i class="el-icon-caret-right"></i>
              </el-col>
              <!-- 二/三级权限 -->
              <el-col :span="19">
                <el-row
                  :class="['bdbottom', i2 === 0 ? 'bdtop' : '', 'vcenter']"
                  v-for="(item2, i2) in item1.children"
                  :key="item2.id"
                >
                  <!-- 通过for循环渲染二级权限 -->
                  <el-col span="6">
                    <el-tag
                      type="success"
                      closable
                      @close="removeRightById(scope.row, item2.id)"
                      >{{ item2.authName }}</el-tag
                    >
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col span="18">
                    <el-tag
                      type="warning"
                      v-for="item3 in item2.children"
                      :key="item3.id"
                      closable
                      @close="removeRightById(scope.row, item3.id)"
                    >
                      {{ item3.authName }}
                    </el-tag>
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-table-column>
        <!-- 索引列 -->
        <el-table-column type="index"> </el-table-column>
        <el-table-column label="角色名称" prop="roleName"> </el-table-column>
        <el-table-column label="角色描述" prop="roleDesc"> </el-table-column>
        <el-table-column label="操作" width="300px">
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="primary"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
              >编辑</el-button
            >
            <el-button
              size="mini"
              type="danger"
              icon="el-icon-delete"
              @click="removeUserById(scope.row.id)"
              >删除</el-button
            >
            <el-button
              size="mini"
              type="warning"
              icon="el-icon-setting"
              @click="showSetRightDialog(scope.row)"
              >分配权限</el-button
            >
          </template>
        </el-table-column>
      </el-table>
    </el-card>

    <!-- 分配权限 -->
    <el-dialog
      title="分配权限"
      :visible.sync="setRightDialogVisible"
      width="50%"
      @close="setRightDialogClosed"
    >
      <el-tree
        :data="rightslist"
        :props="treeProps"
        show-checkbox
        node-key="id"
        default-expand-all
        :default-checked-keys="defKeys"
        ref="treeRef"
      ></el-tree>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="allotRights">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 添加用户 -->
    <el-dialog
      title="添加角色"
      :visible.sync="rolesVisible"
      width="50%"
      @close="rolesClosed"
    >
      <!-- 内容 -->
      <el-form
        :model="addForm"
        :rules="addFormRoles"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="名称" prop="roleName">
          <el-input v-model="addForm.roleName"></el-input>
        </el-form-item>

        <el-form-item label="描述" prop="roleDesc">
          <el-input v-model="addForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="rolesVisible = false">取 消</el-button>
        <el-button type="primary" @click="addRoles">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户 -->
    <el-dialog
      title="修改角色"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        ref="editFormRef"
        label-width="70px"
        :rules="editFormRules"
      >
        <el-form-item label="名称" prop="roleName">
          <el-input v-model="editForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="描述" prop="roleDesc">
          <el-input v-model="editForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo"> 确 定 </el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 角色权限列表
      rolesList: [],
      rolesVisible: false,
      addForm: {
        roleName: '',
        roleDesc: '',
      },
      addFormRoles: {
        roleName: [
          { required: true, message: '请输入角色名称', trigger: 'blur' },
        ],
        roleDesc: [
          { required: true, message: '请输入角色描述', trigger: 'blur' },
        ],
      },
      editDialogVisible: false,
      editForm: {},
      editFormRules: {
        roleName: [
          { required: true, message: '请输入角色名称', trigger: 'blur' },
        ],
        roleDesc: [
          { required: true, message: '请输入角色描述', trigger: 'blur' },
        ],
      },
      setRightDialogVisible: false,
      // 所有权限的数据
      rightslist: [],
      // 树形控件的属性绑定
      treeProps: {
        label: 'authName',
        children: 'children',
      },
      defKeys: [],
      roleId: '',
    }
  },
  created() {
    // 获取所有角色权限
    this.getRolesList()
  },
  methods: {
    // 获取角色权限列表
    async getRolesList() {
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色权限列表失败!')
      }
      this.rolesList = res.data
      console.log(this.rolesList)
    },
    rolesClosed() {
      this.$refs.addFormRef.resetFields()
    },
    addRoles() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('roles', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加失败')
        }
        this.$message.success('添加成功')
        this.rolesVisible = false
        this.getRolesList()
      })
    },
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('请求失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.put(
          'roles/' + this.editForm.roleId,
          {
            roleName: this.editForm.roleName,
            roleDesc: this.editForm.roleDesc,
          }
        )
        if (res.meta.status !== 200) {
          console.log(res)
          return this.$message.error('编辑失败')
        }
        this.$message.success('编辑成功')
        this.rolesVisible = false
        this.getRolesList()
      })
    },
    async removeUserById(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该角色, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除角色失败!')
      }
      this.$message.success('删除角色成功!')
      this.getRolesList()
    },
    // 根据id删除对应的权限
    async removeRightById(role, rightId) {
      // 弹框提示用户是否要删除
      const confirmResult = await this.$confirm(
        '此操作将永久删除该权限, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('取消了删除！')
      }
      const { data: res } = await this.$http.delete(
        `roles/${role.id}/rights/${rightId}`
      )
      if (res.meta.status !== 200) {
        return this.$message.error('删除权限失败!')
      }
      role.children = res.data
    },
    // 分配权限
    async showSetRightDialog(role) {
      this.roleId = role.id
      // 获取所有权限数据
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) {
        return this.$message.error('获取权限数据失败!')
      }
      // 获取到的权限数据保存到data中
      this.rightslist = res.data
      console.log(this.rightslist)
      // 递归获取三级节点ID
      this.getLeafKeys(role, this.defKeys)
      this.setRightDialogVisible = true
    },
    // 获取角色下所有三级权限的ID并保存
    getLeafKeys(node, arr) {
      if (!node.children) {
        return arr.push(node.id)
      }
      node.children.forEach((item) => this.getLeafKeys(item, arr))
    },
    // 监听分配权限对话框的关闭事件
    setRightDialogClosed() {
      this.defKeys = []
    },
    // 为角色分配权限
    async allotRights() {
      const keys = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys(),
      ]
      console.log(keys);
      const idStr = keys.join(',')
      const { data: res } = await this.$http.post(
        `roles/${this.roleId}/rights`,
        { rids: idStr }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('分配权限失败！')
      }
      this.$message.success('分配权限成功!')
      this.getRolesList()
      this.setRightDialogVisible=false
    },
  },
}
</script>

<style lang="less" scoped>
.el-tag {
  margin: 7px;
}

.bdtop {
  border-top: 1px solid #eee;
}

.bdbottom {
  border-bottom: 1px solid #eee;
}

.vcenter {
  display: flex;
  align-items: center;
}
</style>